/*
 * BEEM is a videoconference application on the Android Platform.
 * Copyright (C) 2009 by Frederic-Charles Barthelery,
 * Jean-Manuel Da Silva,
 * Nikita Kozlov,
 * Philippe Lago,
 * Jean Baptiste Vergely,
 * Vincent Veronis.
 * This file is part of BEEM.
 * BEEM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * BEEM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with BEEM. If not, see <http://www.gnu.org/licenses/>.
 * Please send bug reports with examples or suggestions to
 * contact@beem-project.com or http://dev.beem-project.com/
 * Epitech, hereby disclaims all copyright interest in the program "Beem"
 * written by Frederic-Charles Barthelery,
 * Jean-Manuel Da Silva,
 * Nikita Kozlov,
 * Philippe Lago,
 * Jean Baptiste Vergely,
 * Vincent Veronis.
 * Nicolas Sadirac, November 26, 2009
 * President of Epitech.
 * Flavien Astraud, November 26, 2009
 * Head of the EIP Laboratory.
 */
package com.beem.project.beem.smack.avatar;

import org.jivesoftware.smack.util.Base64;
import org.jivesoftware.smack.packet.PacketExtension;

/**
 * PacketExtension to represent the Avatar data.
 * XML namespace urn:xmpp:avatar:data
 */
public class AvatarExtension implements PacketExtension {

	private String mData;

	/**
	 * Create an AvatarExtension.
	 * 
	 * @param base64
	 *            the data of the avatar as a base64 string
	 */
	public AvatarExtension(final String base64) {
		mData = base64;
	}

	/**
	 * Create an AvatarExtension.
	 * 
	 * @param data
	 *            the data of the avatar
	 */
	public AvatarExtension(final byte[] data) {
		mData = Base64.encodeBytes(data);
	}

	/**
	 * Get the avatar data as a Base64 string.
	 * 
	 * @return a base64 string.
	 */
	public String getBase64() {
		return mData;
	}

	/**
	 * Get the avatar data.
	 * 
	 * @return the decoded data
	 */
	public byte[] getData() {
		return Base64.decode(mData);
	}

	@Override
	public String getElementName() {
		return "data";
	}

	@Override
	public String getNamespace() {
		return "urn:xmpp:avatar:data";
	}

	@Override
	public String toXML() {
		StringBuilder builder = new StringBuilder("<data xmlns=\"");
		builder.append(getNamespace()).append("\">");
		builder.append(mData);
		builder.append("</data>");
		return builder.toString();
	}

}
